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  • Animals  (106)
  • Humans  (86)
  • Life and Medical Sciences  (83)
  • Chemical Engineering  (76)
  • INSTRUMENTATION AND PHOTOGRAPHY  (61)
  • FLUID MECHANICS AND HEAT TRANSFER  (48)
  • COMMUNICATIONS AND RADAR
  • STRUCTURAL MECHANICS
  • 1990-1994
  • 1980-1984  (488)
  • 1955-1959
  • 1940-1944
  • 1983  (488)
Collection
Keywords
Publisher
Years
  • 1990-1994
  • 1980-1984  (488)
  • 1955-1959
  • 1940-1944
Year
  • 1
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    Frequency-doubled CO2 lidar measurement and diode laser spectroscopy of atmospheric CO2 (1983)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: A lidar instrument based on pulsed frequency-doubled carbon-dioxide lasers has been used at 4.88 microns for remote sensing of atmospheric carbon dioxide. A tunable-diode laser spectrometer provided the high-resolution spectroscopic data on carbon-dioxide line strength and line broadening needed for an accurate differential absorption measurement. Initial field measurements are presented, and instrument improvements necessary for accurate carbon dioxide measurement are discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics (ISSN 0003-6935); 22; Sept. 1
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Light and propranolol suppress the nocturnal elevation of serotonin in the cerebrospinal fluid of rhesus monkeys (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-07-29
    Description: Markedly elevated nighttime concentrations of serotonin in rhesus monkey cerebrospinal fluid were reduced to daytime levels by exposing the monkeys to continuous light or to the beta-adrenergic antagonist propranolol. Nighttime elevations of melatonin in cerebrospinal fluid were also suppressed by propranolol and light. Serotonin released in large quantities at night appears to be regulated like melatonin, and may act as a cerebroventricular hormone to influence brain and pituitary function at night.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garrick, N A -- Tamarkin, L -- Taylor, P L -- Markey, S P -- Murphy, D L -- New York, N.Y. -- Science. 1983 Jul 29;221(4609):474-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6683428" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Circadian Rhythm/drug effects ; Humans ; *Light ; Macaca mulatta ; Male ; Melatonin/physiology ; Propranolol/*pharmacology ; Rats ; Serotonin/*cerebrospinal fluid/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    PAPER CURRENT
  • 3
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    The thymus-adrenal connection: thymosin has corticotropin-releasing activity in primates (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-23
    Description: Endotoxin-free thymosin fraction 5 elevated corticotropin, beta-endorphin, and cortisol in a dose- and time-dependent fashion when administered intravenously to prepubertal cynomolgus monkeys. Two synthetic component peptides of thymosin fraction 5 had no acute effects on pituitary function, suggesting that some other peptides in thymosin fraction 5 were responsible for its corticotropin-releasing activity. In agreement with these observations, total thymectomy of juvenile macaques was associated with decreases in plasma cortisol, corticotropin, and beta-endorphin. These findings indicate that the prepubertal primate thymus contains corticotropin-releasing activity that may contribute to a physiological immunoregulatory circuit between the developing immunological and pituitary-adrenal systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Healy, D L -- Hodgen, G D -- Schulte, H M -- Chrousos, G P -- Loriaux, D L -- Hall, N R -- Goldstein, A L -- CA 24974/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 23;222(4630):1353-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6318312" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenocorticotropic Hormone/*blood ; Animals ; Dose-Response Relationship, Drug ; Endorphins/blood ; Female ; Hydrocortisone/blood ; Kinetics ; Macaca fascicularis ; Thymectomy ; Thymosin/analogs & derivatives/*pharmacology ; Thymus Gland/*physiology ; beta-Endorphin
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    PAPER CURRENT
  • 4
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    Gene for hereditary retinoblastoma assigned to human chromosome 13 by linkage to esterase D (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-02-25
    Description: Evaluation of three families with hereditary retinoblastoma demonstrates close linkage of the gene for this tumor with the genetic locus for esterase D. These results assign the gene for the hereditary form of retinoblastoma to band q14 on chromosome 13, the same region which is affected in the chromosome deletion form of this eye tumor, and therefore suggest a common underlying mechanism in the pathogenesis of these two forms of retinoblastoma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sparkes, R S -- Murphree, A L -- Lingua, R W -- Sparkes, M C -- Field, L L -- Funderburk, S J -- Benedict, W F -- EY-02715/EY/NEI NIH HHS/ -- HD-04612/HD/NICHD NIH HHS/ -- HD-05615/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Feb 25;219(4587):971-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6823558" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Deletion ; Chromosome Mapping ; *Chromosomes, Human, 13-15 ; Esterases/genetics ; Genetic Linkage ; Humans ; Retinoblastoma/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    PAPER CURRENT
  • 5
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    Monoclonal antibodies for diagnosis of infectious diseases in humans (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-02-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nowinski, R C -- Tam, M R -- Goldstein, L C -- Stong, L -- Kuo, C C -- Corey, L -- Stamm, W E -- Handsfield, H H -- Knapp, J S -- Holmes, K K -- New York, N.Y. -- Science. 1983 Feb 11;219(4585):637-44.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6297006" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Monoclonal/*immunology ; Chlamydia Infections/diagnosis/immunology ; Chlamydia trachomatis ; Communicable Diseases/*diagnosis/immunology ; Gonorrhea/diagnosis ; Herpes Simplex/diagnosis ; Humans ; Simplexvirus/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    PAPER CURRENT
  • 6
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    Method and apparatus for supercooling and solidifying substances (1983)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: An enclosure provides a containerless environment in which a sample specimen is positioned. The specimen is heated in the containerless environment, and the specimen melt is dropped through the tube in which it cools by radiation. The tube is alternatively backfilled with an inert gas whereby the specimen melt cools by both radiation and convection during its free fall. During the free fall, the sample is in a containerless, low-gravity environment which enhances supercooling in the sample and prevents sedimentation and thermal convection influences. The sample continues to supercool until nucleation occurs which is detected by silicon photovoltaic detectors. The sample solidifies after nucleation and becomes completely solid before entering the detachable catcher. The amount of supercooling of the specimen can be measured by knowing the cooling ratio and determining the time for nucleation to occur.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Microwave holographic surface measurement of the Tidbinbilla 64-m antenna (1983)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: The use of a holographic technique for accurately measuring the surface figure of the Tidbinbilla (Canberra, Australia) 64-m antenna is described. Described by Bennet et al. (1976) and Scott and Ryle (1977), the technique consists of measuring the complex far-field response of the antenna at a single frequency using a terrestrial, satellite-borne or celestial radiation source of small angular diameter. This two-dimensional pattern is then Fourier transformed to yield the complex illumination function across the antenna aperture; antenna surface deviations are manifested as phase fluctuations in this function. The speed and low cost of using the technique are real advantages where observing schedules with the telescopes are heavily subscribed. For the 64-m antenna, the unweighted rms surface deviation is found to be about 1.8 mm; when weighted by the radial amplitude taper it is about 1.1 mm. Two earlier estimates by other methods had yielded tolerances of about 1.2 mm rms and 1.1 mm rms. It is planned to use the technique to survey the 22-m antennas of the Australian Telescope accurate to approximately 0.1 mm rms near 10 Ghz.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Astronomical Society of Australia, Proceedings (ISSN 0066-9997); 5; 2 19
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Coherent infrared lidar mission and technology needs for measurements of transport and concentration of tropospheric trace species (1983)
    In:  Other Sources
    Details
    Publication Date: 2019-07-27
    Description: The science justification and the feasibility of aircraft-based CO2 Doppler lidar measurements of transport between the free troposphere and the stratosphere (or planetary boundary layer) are discussed for a wide range of seasonal and geographic conditions. Ground-based coherent CO2 lidar aerosol scattering experiments using a stable ring resonator (about 50 mJ/pulse) CO2 laser with external injection locking are reported. Comparative studies of injection-locked CO2 laser unstable resonators and master oscillator power amplifiers are reported for future CO2 lidar missions with respect to requirements of pulse energy, duration/shape, frequency chirp, efficiency for heterodyne detection, and combined Doppler lidar and Differential Absorption Lidar missions.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Coherent infrared radar systems and applications II; April 7, 8, 1983; Arlington, VA
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    NASA TECHNICAL REPORTS
  • 9
    Electronic Resource
    Electronic Resource
    Relative humidity affects the intercellular spaces and cell contacts of the kidney epithelium of the terrestrial snail Helix aspersa müller (1983)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 178 (1983), S. 313-322 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The effects of relative humidity on hemolymph osmolarity and on kidney ultrastructure are explored in Helix aspersa. The snails are active at 95% relative humidity and less active at 50% relative humidity. The hemolymph osmotic pressure increases with the decrease of relative humidity. Pericardial fluid and hemolymph collected from the heart contain similar amounts of total proteins, and both fluids display hemocyanin molecules in negatively stained preparations. When the snails are kept in an atmosphere of 95% relative humidity, numerous wide intercellular spaces are observed in the single-layered-kidney epithelium. The spaces are almost absent when the snails are kept at 50% relative humidity. It is suggested that prourine is formed through a paracellular junctional pathway across the single-layered kidney epithelium, and that the pericardial cavity is not the site of prourine formation. The septate junctions joining the kidney epithelial cells form a continuous belt of intimate contact in the paracellular pathway of prourine. Long septate junctions with many septa are present in the kidneys of snails from the atmosphere of 50% relative humidity, whereas short septate junctions with fewer septa are found in the kidneys of snails from the atmosphere of 95% relative humidity. It is possible that the longer septate junctions with many septa reduce prourine formation across the kidney sac epithelium.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051780308
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Discrete cell model of pore-mouth poisoning of fixed-bed reactors (1983)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 29 (1983), S. 289-297 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Catalyst deactivation in an isothermal fixed-bed reactor under pore-mouth poisoning conditions is investigated theoretically using a discrete mixing cell model. Two fundamental relationships which characterize the poisoning process in the reactor are identified and incorporated into the model to develop a simple graphical procedure for a quick, general insight into the problem. This graphical method is extended to design pellet impregnation profiles along the reactor which would give nondeteriorating reactor performance up to a given time. The effects of various system parameters on the lifetime and conversion performance of the reactor are also examined analytically, graphically and numerically.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690290217
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    Paper (German National Licenses)
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